These are language packs for Aurora. To test them you will need to do the following:

Install Aurora in English, French or any language in which you are comfortable.

Start Aurora and come back to this page.

Install the locale switcher.
This tool allows us to change from one language to another. If locale
switcher has not yet been made compatible with this version of Aurora
then install the Addon compatibility reporter which will enable all of your addons by default.